Phase-splitter and clutch.



2 SHEETS-SHEET 1 PATENTED FEB. 19, 1907. H. H CUTLER.

PHASE SPLITTER AND CLUTCH.

APPLIGATNN nun AUG."{.1905.

PATENTEI) FEB. 19, 1907. HQ-H. GUTLER; was SPEITTEB, AND GLBTGHU APFMMJXIM? FILED AUG. 7, 1005.

ETE -EHEET Q,

UNITED STATES PATENT oEE oE;

HENRY H. CUTLER, OF MILWAUKEE, WISCONSIN, FASSIGNOR TO THE CUT- LER-HAMMER MFG. 00., or MILWAUKEE, .WISCONSIN, A coRPoEA'rroN OF WISCONSIN. v

PHASE-SPLITTER AND CLUTCH.

To all whom it may concern.-

'Be it known thatI, HENRY H. CUTLER, a citizen of the United States, residin at Milwaukee, in the county. of Milwau kee and State of Wisconsin, have invented new and useful Improvements in Phase-Splitters and- Clutches, of which the following is a full, clear, concise, and exact description, reference'being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in means forstarting single-phase motors under no load and imposing the load thereon after the motor has attained speed.

My invention contemplates particularly the provision of a combined phase-splitter for starting the motor and a switch for closing the circuit through a magnetic clutch adapted to impose the load upon the motor after the same hasstarted and attained speed.

I have illustrated my invention in the accompanying drawings, in which Figure 1 is a front elevation of the switch of my invention. Fig. 2 is a diagrammatic view illustrating the circuit arrangement of my invention in connection with a single-- phase motor and a magnetic clutch. Fig. 3 is a side view thereof. Fig. 4 is a detail view of one of the switch-levers. Fig. 5 is a detail view of the mechanism for holding the levers in a closed position. F ig. 6 is a detail view of one of the dogs employed, and Fig. 7 is a sectional top view of one of the levers and a top view of the cooperating rocking dogs.

In constructing my invention switch-levers 1, 2, 3, and 4 are suitably pivoted or journaled at oneend and provided at their opposite ends with handles. I have shown the several levers as journaled upon a shaft or rod 5, mounted in arms upon brackets 6.

The brackets 6 also support a rod 7, which is threaded through a rubber tube 8, serving as a cushion or buffer against which the extended ends of the arms or levers are adapted to impinge when thrown open. The first lever 1 fears a single-pole switch and carries a contact device 9, made in the usual form from a number of strips of copper laid face to face, the free ends thereof being, adapted to engage the contact-surfaces to complete the circuit therethrough. The levers 2 and 3 are provided with arms 10 and 11. and 12 and 13, respectively, and thereby form two double- Specification of Letters Patent.

Application filed August 7, 1905. Serial No. 273.133.

Patented Feb. 19,1907;

pole switches. Each arm of the double-pole switch carries a contact device of the same construction as the contact device 9. Upon thebase-board 14 is mounted a contact-bar 15, with which one end of the contact device 9 of each of the levers 1, 2, and 3 is adapted to engage, the other end of said device bemg adapted to engage one of the contact-terminals 16,17, 18, 19,and 20. Upon the terminal 16 is provided a binding-post 21, by-

which'the same may be connected with one side of the supply-circuit. Upon the terminal'20 is provided a binding- 0st 22, whereby the same may be eonnecte with one set of field-coils of the motor, and a second ,binding-post 23 is provided u on the base 14, to which is connected the ot er set of field-coils of the motor. Upon the terminal- 16 is mounted a carbon block 24, and a similar carbon block 25 is mounted upon the end of the contact-bar 15.

The first switch-arm 1 carries laterally-extending'arms 26 and 27, supporting upon their ends carbon blocks 28 and 29, respectively. When-the switch-arm 1 moved to close the circuit, the block 29 engages block 25 and block 28 engages block 24, thereby closing the circuit from terminal 16 to the terminal 15. The further movement of the switch-arm causes the contact device 9 to di rectly close together terminals 15 and 16. Likewise when the snitch-arm is moved outward the contact device 9 leaves terminals 15 and 16 before the carbon blocks separate,

so that any are which may be formed by the arm 1 a lug'30 is provided, which carries a laterally-extending rod 31, which may take the form of a screw. Mounted upon tle base 14 above the arm is a retaining-magnet 32, having an armature 33, pivoted at 34. The armature 33 of the magnet carries a laterally and upwardly extending lug 35, and when the arm 1 is moved to close the circuit the rod 31 engages the side of the armature to move the same against the magnet-pole and the magnetism of the magnet 32 retains the armature in this position. The swinging in of the armature carries the lug 35 upon the exterior of the rod 31, so that the rod will rest in the slot formed between thelug 35 the niagnet32remains energized the arm 1 will be held in-a closedposition. When,

" however, the magnet-is denergized, the

' lip 41 -1s-provide, 5

weight of the atmwillcarry the same to the position shownin Fig. 3, thereby rocking theiarmature 33 upon its pivot, as shown;

Mounted upon a rod orshaft 37', supported on -suitable bearings uponthe base 14, are

rocking 'do s38, 39,-.and 40. Each do as L 0 its rearen so shaped as to'jengage the ase-' plate 14 an l limit the downward movement thereof when free. Upon the outer end of 'thef'dog to the ri htan upwardly-extending whiclr -has its frontedge curved ,and. 'ts rear. edge perpendicular.- to the up er-sui'facecf' the-dog. The-"under side itsentire length, which-is rounded oft-at its left-handed e; "The -levers2,'-3,;and'4 are the dog-has a lip42 extending throughout sists of two parts-47 and 48,f t e part 47 being squared-in section and hat upon the end,-

and when the" leveris ina position to close the circuit presents a vertical surface. The

upper part or-the portion 48;is inclined or. c

amfered atan acute angle.

.Tne lever 4 forms a singlepole switch and is of the samegeneral construction as the lever '1, the contact device thereof being adapt,- ed to close the circuit betwen the terminals f 49 and 50. The terminal 49 is adapted to be connected with one terminal of the winding supply-circuit.

or the clutch and the other terminal 50 is adapted .to be connected with one side of the n F ig- 2 I have shown a diagrammatic view of the circuit'arrangement of ray-device, and it will be noted that one side 51 of the supply-main branches so as to include two sets of coils inparallel. I haveshown four field-coils 52, 53, 54, and 55, but it will be understood that I have only selected this number for the purpose of illustration. One

side 51 of the supply-main is connected, through the coils 52- and 53 by conductor 56,

-with the binding-post on the contact 20. The contact 20 is connected with one end of. a non-inductive resistance 57, the opposite end thereof being connected by conductor 58 resistance 63, thence by conductors 62 and with the ontact-bar 15. At an intermediate point" the non-inductive resistance is con-. nected b conductor 59 with the contact 18. A branc through the field-coils and 54 by conductor 61 with the bindingost 23, which in turn is connected by con uctor 62 with the contact 19-, said contact being also connected with one end of the inductive resistance 63. The op osite end of the resistance 63 is connected by the conductor 58 with the contact of the main 51 is connected;

15, and at an intermediate point connected by conductor 64 with the cdntact 17. The

contact 16' is connected .by conductor 65 I -with the opposite side 66 of the supply main.

The retaining-magnet 32 and theclutch67 In the present instance,- hoivever, they-are illustratedas receiving a direct current irom' the alternating-current mains 51 and 66 through the interposition are supplied with a direct current from any *suitable source.

ofa rectifier 68. This rectifier may be of any desirable construction and is illustrated aaa rectifier of the aluminium-iron type, inwhich the longer transverse lines 69 represent, say, iron, while the shorter lines 70 represent aluminium. The current from the alternating-current circuit will passbetween these metals in one direction only. Accordingly with the cells disposed as illustrated-a rectified current will be delivered to the-retaining magnet and to the clutch. The terminals 71 and 72 of the rectifier are connected by conductors 73 and 74 with the supply-mains '51 and 66. One terminal 75 of the rectifier is connected by conductor 76 with oneside of the winding of the magnet 32, the opposite side of the winding being connectedby conductor 77 with the terminal 78 of the rectifier. The terminal 75 of'therectifier is also connected by the conductor 7-9 with the con-' .tact 50, while the contact 49 is connected by conductor 80, through the winding of the clutch 67, with the terminals 78 of the rectifier.

In operation, assuming that it be desired to startthe motor and impose the load thereon,

.the main switch having been closed, the switch-arm is first closed to close the circuit betweenthe carbon blocks and finally to connect together the terminals 15 and 16 directly through the contact device 9. The

armature 33 is engaged by the pin 31 and moved against the pole oi' the 'retainingmagnet 32. The retaining-magnet thus serves to maintain the switch-arm 1 in a closed position. Current may be traced from the supply-main 66 by conductor 65 to contact 16, across the switch-arm 1 to contact-bar 15, where it will divide, part thereof passing through the non-inductive.resistant-e 57 to contact 20 and thence condm-tor 56, through the field-coils 53 and-52, back to the opposite supply-main 51. The other part of the current will pass through the inductive second switch-arm is now closed, and as the dog 38 is in its raised position the latch 43 oithe arn1'2 will engage the vertical wall then:-

of the lug 46 on the arm 2 will engage and lift arm 3 is closed the latch 43 thereof will be the resistance is out out, and the motor atwhen the arm 4 is closed the latch 43 thereof lowing the fourth switch to' open, whereby of, and the switch-arm will thus be held in a closed position. A'section of each of the resistances 57 and 63 will be cut out, and an additional amount of current will be admit: ted to the field-coils-of the motor, thus increasing the speed of the same. The wall'48 the second rocking dog 39, so that when the engaged and held by the lip 41 of the dog. W hen the arm 3 is closed, the remainder of tains full speed, The closing of the. arm 3 causes the wall 48 of the lug 46 thereonto engage and liftthe third rocking dog, so that will engage the lip 41 of the rocking dog and hold this last arm closed; The closing of the arm 4 closes the circuit through the clutch- Winding, and the clutch is'energized to con nect the motor with its load. it it is desired to disconnect the load from the motor and stop the same, the retaining-magnet 32 may be denergized in any suitable manner, and the arm 1 will be released and fly, outward. In moving outward the first rocking dog is permitted to fall and the latch of the second switch-arm is thus released, permitting the i second switch-arm to likewise fly outward.

This permits the second rocking dog to fall and allows the third switch to open, which in turn permits the third rocking dog to fall, al-

all the switch-arms are released and the circuit to the motor is opened,'as well as the circuit to the magnetic clutch.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a motor, of a phase-splitter, comprising a plurality of resistances of different character, a magnetic clutch mechanism, and a plurality of switches actuatable consecutivel for controlling said resistances and said clutch.

2. The combination with a motor, of a phase-splitter, having aplurality of resist-- ances of different character, a magnetic clutch, a plurality of independ ently -actuated switches controlling said resistances and said phase-splitter,

clutch, and means for preventing the closure of said switches except in a definite order. I 3. The combination with a motor, of a I phase-splitter, having a plurality of resistl ances of difierent character, I a magnetic clutch a-plurality of independently-actuated switches for controlling said resistances and said clutch, and means for holding said switches in clcsezl position.

4. The combination with a motor, of a phase-splitter, having. a plurality of resistances of different character, a magnetic clutch, a plurality of 'independently-actuated I switches for controlling said resistances and 1 said clutch, and an electromagnetic retaining mechanism for ho1ding-said switches in a closed position. V v

5. The combination with a motor, of a phase-splitter, having'a plurality of resistances .of different character, a magnetic clutch, a plurality of independently-actuated switches for controlling saii resistances and said clutch, and electromagnetic retaining mechanism for holding sail switches in their closed positions, and means for supply ingthe same and the clutch with a direct current.

.6. The combination with a motor, of 9.

having a plurality of resistances of different character, a magnetic clutch, a plurality of independently-actuated switches for controlling said resistances and said clutch, means for, preventing the closure of said switches except in a' definite order, and a retaining mechanism forholding said switches in a clcsed position.

7. The combination wi'h a motor, of a phase-splitter, having a plurality of resistances of different character, a magnetic clutch, a plurality of independently-actuated switches arran ed in'mechanieal series for controlling said resistances, an interlocking mechanism whereby veach switch controls the next succeeding switch, and a retaining-magnet for the first switch of the series.

8. The combination with a motor, of a phase-splitter, having a plurality of resistances of different character arranged in parallel paths, a magnetic clutch, a plurality of independently-actuated switches for controlling said resistancesand clutch, and means for preventing the closure of said switches except in a definite order. 4

9. The combination with a motor, of a phase-splitter, having a plurality of'resistances of different character arranged in parallel paths, a magnetic clutch, a plurality of independenthr-actriated switches for controlling said resistances, means 'for preventing the closure of said'switches, except in a definite order, and a retaining mechanism for holding said switches in a closed position.

10. The combinationwithn motor, of a phase-splitter,having a non-inductive resistance and an inductive resistance arranged in parallel paths, of a magnetic clutch, and a plurality of switches 'actuatahle consecutively for controlling said resistances and said clutch.

llfThe combination with agmotor, .of a phase-splitter, a non-inductive and inductive resistance arrange'l in parallel pathsga magnetic clutch, a plurality of independentlyi operated switches for controlling said resist ances and clutch, and means for preventing the closure of said switches except in a definite err-err 12. The combination with a motor, of a phase-splitter therefor, having a plurality of resist-arces of different character, a clutch mechanism, and a plurality ofswitches actuatable consecutively for controlling .saidswitch for controlling sai clutch.

;]3, The combination with a motor, of a phase-splitter therefor, having a plurality of 5 resistances of different character, a magnetic clutch, a plurality of independently-actuated switches for controlling said resistances; an

independently-actuate switch for controlling said clutch, and means whereby said 1o clutch-switch cannot be closed until the been operated.

In witness whereof I have hereunto subscribed my name in the prcsence'of two Witnesses.

HENRY H. CUTLER.

WVitnesses:

T. E. BARNUM, H. J. WIEGAND. 

